Improvement in boilers



DANIEL SULLIVAN.

Improvement In Boilers. No. 114,222, APatentedApfilznsaw,

JQ 1W my @5 To all whom it may concern:

Be it known that I, .DANIEL SULLIVAN, of Bangor, in the county of Penobscot and State of Maine, have invented a uewand useful improved Boiler; and I exact description of the same, which will enable others to make and use my invention, reference being had to the accompanying drawing forming a part of this speciiication, in which- Figure l shows a front View, and

Figure 2 a section of' my invention.

The object of my invention is to provide a simple, quick, and easy way of getting at the tubes ci' a tubu-v lar boiler for the purpose of cleaning, repairing, or renewing them.

I eiiect my purpose by hanging plates on the front and back of the boiler upon hinges, making the joint tight by propel packing, and securing the plates, whenV closed, by screw-bolts, and also by a rod running from front to back of the boiler, through they plates, and fastened in place by nuts or other convenient device.

Reference' to the drawing will fully `illustrate my invention.

At ais shown the outer shell of the boiler.

b, the inner shell, the ends of which constitute the tube-sheets.

shows the hinged face-plate, hung upon the hinges Z.

Around' the outer shell of the boiler I holt the dan ge e, to which the lace-plate is seemed when closed,- asshown in iig. 2 at j, by screw-bolts. This flange .also extends across the face of the boiler for the same purpose, viz., to secure the plate to.

Around its edge is the groove g, for the reception of 'the packing, which is shown by the letter gin the section. This packing makes the joint of the face-plate and ange around the boiler steam and Water-tight.

At It is shown the rod which runs through the boiler and plates for greater security of fastening.

j j show the water-tubes, extending through the inner boiler directl r over the fire-box.

DANIEL SULLIVAN, or BANeonfMAINE.

Letters Patent No. 114,222, dated April 1871.

IMPROVEMENT IN Bomans.

The Schedule refen-e to in these Letters Patent and` mak-ing part of the same.l

The grate is shown at L', the rear end resting on the support Z, extending across the inner boiler and se cured to its sides. (See dotted lines at l, iig. 1.

At m is the flue or smoke-stack of the boiler, and n o, 'dg'. l, show respectively the feed and draughtdoors.

The water-space is designated bythe letter w.

The face-plates can be easily removed and the inside oi the boiler opened by swinging said plates open on their hinges, iirst removing the rod and the, continj ingscrews around the edge.

This facilitates cleaning, repairing, or vremoving the tubes from the boiler, which, if desired, can also be Sup plied with the usual manhole.

The screws and rod can be quickly put in place again when the Work is done, and the packing renders the joint tight.

This method of construction has many advantages. All the tubes can be readily and easily got at for the purpose of cleaning or scraping them, or performing any other work, since they are all` exposed atv both ends by opening the face and back plates.

I do not claim a hinged mau-hole plate as shown in the patent of J. D. Samson, No. 110,872. My claim is Vfor a different device, and is not intended to do away with -or take the place of the man-hole common to steam-boilers. By my device a means is provided for getting at the inside o'In the tubes of tubular boilers, so Vthat their open ends will be exposed so as t0 insert a scraper for cleaning and pertbrming other work, which can best be done inthis way.`

What I claim as my invention, and desire to secure by Letters Patent, is-

The hinged face and back plates of a boileras herein described, in combination lwith the grooved dange e vand rod 71., as herein set forth.

DANIEL SULLIVAN.

VVitnesses WM. FRANKLIN SEAVEY,

I H. S. FULLER. 

